I have tried over a dozen different tip tools, from the Kamui one to the Tiger La Mignifcant, and the best one I have found to far is the Mezz Tip tool!
It just never wears down, its made from heat treated stainless steel incanel.
Its all you will ever need, and mabe a burnisher for the sides.
I wouldn't have gone there but since you did.... "the grind it in the hole" design offers ¼ of 1 square inch of abrasive surface to shape your tip, the Last4Ever has 1.5 square inches of abrasive surface to shape your tip. That is 600% more area, and, if you tried them both I am sure you would see the difference. Especially as it relates to the leather material getting clogged up in the abrasive material
I'm sure Mezz put's out a quality product and I'm glad you like it. You might want to try both tools before you declare one better than the other.